Several things can cause this. Tank appears too new for a skimmer to help with it.
If the ammonia or nitrite levels are elevated, then the biologicals or natural bacteria in the tank are not stabilized sufficiently to keep toxins in check. test the ammonia and nitrate levels. Hopefully youre not using an API test kit. . .. You may get false readings.
Organics will cause this also. Vacuum the gravel and make sure the filter is running at a normal output. If the filter is slow, odds are it's clogged with debris, which is another potential source of organics.
water source can be an issue also. . . Assure water is clear as you are adding it to the tank.
Blooms can also cause this whereas algae is trying to form and causing such tint.
Over carbon, I would do a slight water change and add chemipure elite which comes in a pouch which will lower any toxins, keep nitrate in check and polish your water.
After the week, add a few snails such as cerith, margarita, astrea and nassarius plus 6-8 blue leg hermits to take control.